Groundwater Treatment Technologies for 1,4-Dioxane

Posted on July 20th, 2020

JM Sorge, Inc. (JMS) is constantly working to stay up to date on potential emerging contaminants under review by the New Jersey Department of Environmental Protection (NJDEP).  One compound we are encountering at environmental remediation sites is 1,4-dioxane.

When 1,4-dioxane is discovered in groundwater at high concentrations, consultants and engineers will often employ an active pump and treat system to neutralize 1,4-dioxane.  Some of the simplest pump and treat systems for chlorinated solvent groundwater contamination utilize “air strippers” to volatilize the contaminants.  Unfortunately, this technology is not effective on 1,4-dioxane.

Three (3) treatment technologies that can successfully treat 1,4-dioxane consist of hydrogen peroxide/ozone, hydrogen peroxide/UV and ozone only. JMS is currently utilizing a combination of hydrogen peroxide and UV treatment on several sites to address 1,4-dioxane contamination in groundwater.

In order to utilize this technology, permitting is required through NJDEP and the local county/town prior to installing the treatment system.  A Treatment Works Approval (TWA) application must be submitted to NJDEP, in addition to any specific local permits required.  The discharged/treated groundwater from the system must also be permitted, whether it is discharged through the local/county sanitary system, directly back to groundwater (which would require a Discharge to Groundwater [DGW] permit) or via outfall to a stream or river (which would require a Pollutant Discharge Elimination System [NJPDES] permit).  A link is provided below to several of the permits that may be required for incorporating a new groundwater treatment system into a remedial action.

JMS has experience navigating and compiling these complex permitting processes through NJDEP and local New Jersey municipalities/counties for the construction of these treatment systems. JMS consistently works with environmental engineers to assist in approving schematics/plans and has worked with several treatment technology specialists that design and construct these systems. JMS is ready to be your partner in selecting and incorporating your new treatment system into your active remediation project.


Nicholas Mazza

Project Manager

1,4-Dioxane (dioxane) is a heterocyclic organic compound. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether

1,4-Dioxane (dioxane) is a heterocyclic organic compound. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether

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